Split keyboard



FIG. 1 is a top plan view of a split keyboard showing my new design.

FIG. 2 is a bottom plan view of the split keyboard.

FIG. 3 is a right side view of the split keyboard.

FIG. 4 is a left side view of the split keyboard.

FIG. 5 is a front end view of the split keyboard; and,

FIG. 6 is a rear end view of the split keyboard.

The broken lines are shown in the figures for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a split keyboard, as shown and described. 